Solution: When she was dating Mike, Katherine considered the possibility of becoming a stepmother to Mike's son MJ and placing him on her health insurance.
Question: When she was dating Mike, Katherine considered the possibility of becoming a stepmother to Mike's son MJ and placing him on her health insurance. At the same time, she considered making a switch in her health coverage. She took a look at a number of insurance carriers and determines the additional cost (per month) of having a child on her policy, given below:
125, 166, 136, 98, 115, 147, 142, 177, 109, 118, 131, 152
You may assume the data is normally distributed. Originally, Katherine thought there would be an additional cost of no more than $100 per month. At the .05 level of significance, does Katherine have evidence against her initial thought?
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![[Step-by-Step] Determine the number of MMs in](/images/solutions/MC-solution-library-62209.jpg "[Step-by-Step] Determine the number of MMs in your sample and")
![[Solution] Perform the x2 goodness-of-fit using the](/images/solutions/MC-solution-library-62211.jpg "[Solution] Perform the x2 goodness-of-fit using the a = .05 level")
